Heat-transferring elements for regenerative heat exchange in gas-gas fluidized bed heat exchangers

Abstract

Heat-transferring elements for regenerative heat exchange in a gas-gas fluidized bed heat exchanger. The elements are in the form of separate, freely movable saddle-shaped bodies. The saddle-shaped elements may have one or more holes, and may also, or alternatively, have one or more hollow spaces or chambers which are filled entirely or partially with materials of high heat-retaining capacity, and/or with latent storage masses.

What we claim is: 
     
       1. A heat-transferring element having increased surface areas as well as good thermal conducting for regenerative heat exchange in a gas-gas fluidized bed heat exchanger, said element having a greater specific surface than spheres as well as being embodied stable to withstand increased turbulence in the fluidized bed heat exchanger during heat transfer therewith as a separate and distinct, freely movable, saddle-shaped body having a self-cleaning effect and having a surface construction arcuate on opposite sides so that heat can be transferred better from both sides into the element having a thickness in a range of only 1 mm to 3 mm to reduce material content, whereby necessarily also pressure losses in the heat exchanger decrease while also having an excellent aerodynamic behavior and increased turbulence in the fluidized bed heat exchanger. 
     
     
       2. A heat-transferring element according to claim 1, in which said element is provided with at least one hole that further improves aerodynamic behavior of said heat transferring element and that reduces material used, whereby necessarily also pressure losses in the heat exchanger decrease. 
     
     
       3. A heat-transferring element according to claim 1, in which said element is at least coated with synthetic material which is mixed with other material to improve the properties thereof. 
     
     
       4. A heat-transferring element according to claim 3, in which said synthetic material is selected from the group consisting of compounded and uncompounded polyolefins, and fluorine-containing synthetic materials.